(sex, vulgar) vaginal orgasm

in the middle of a conversation; on the other line of the phone

(astronomy) cosmic background radiation

an astronaut (member of the crew of a spaceship or other spacecraft, or someone trained for that purpose)

xenobiology (speculative biology of extraterrestrial life)

(engineering) aerospace engineering

space probe

Synonym of 天体物理学 (tentai butsurigaku, “astrophysics”)

Synonym of シュルレアリスム (shururearisumu, “surrealism”)

surreal, surrealist, surrealistic